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Finding the Fourth Proportional to 652,515.07, 978,584.69 and 179,215.87

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Solution

The fourth proportional to 652,515.07, 978,584.69 and 179,215.87 is: 268,772.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,515.07 : 978,584.69 = 179,215.87 : x
  2. Step 2: Convert to fraction form
    652,515.07/978,584.69 = 179,215.87/x
  3. Step 3: Cross multiply
    652,515.07x = 978,584.69 × 179,215.87
  4. Step 4: Simplify right side
    652,515.07x = 175,377,905,690.95
  5. Step 5: Solve for x
    x = 175,377,905,690.95/652,515.07
  6. Step 6: Final answer
    x = 268,772.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.